- Romeo Montague: The male protagonist, a young and impetuous member of the Montague family, who falls in love with Juliet.
- Juliet Capulet: The female protagonist, a young and innocent member of the Capulet family, who reciprocates Romeo's love.
- Mercutio: Romeo's close friend and confidant, who is known for his wit and humor.
- Paris: A kinsman of the Prince, who is betrothed to Juliet and seeks to marry her.
- Benvolio: Romeo's cousin, who tries to prevent conflict between the Montagues and the Capulets.
- Tybalt: Juliet's cousin, a hot-tempered and violent member of the Capulet family.
- Nurse: Juliet's loyal nurse, who assists her with her relationship with Romeo.
- Friar Laurence: A Franciscan friar who marries Romeo and Juliet in secret, and tries to help them overcome their obstacles.
- Lord Capulet: Juliet's father, who is the head of the Capulet family and seeks to arrange her marriage to Paris.
- Lady Capulet: Juliet's mother, who supports Lord Capulet's plans for Juliet's marriage.
- Montague: Romeo's father, who is the head of the Montague family and shares a feud with the Capulets.
- Lady Montague: Romeo's mother, who worries about her son's well-being.
These characters play significant roles in the development of the plot and the exploration of the play's themes, such as love, fate, and the consequences of impulsive actions.